The FortiOS Carrier Handbook
of FortiOS Carrier features MMS background
Other MMS content interfaces that connect a service provider network to other external
sources can pose threats as well. MM3 handles communication between the Internet and
the MMSC and is a possible source of viruses and other content problems from the
Internet. MM4 handles communication between different content provider MMSCs.
Filtering MM4 content protects the service provider network from content sent from
foreign service providers and their subscribers. Finally MM7 is used for communication...